273 Low profile single 4 barrel intake manifold 64-65 aluminum Offenhauser # 5489 NOT MINE

Not mine, but I saw it on eBay for you 64-65 273 owners for a decent price.

MOPAR brand ? 318 340 360 ALUMINUM INTAKE DART CUDA CHARGER DUSTER RT | eBay

https://offenhauser.co/wp-content/uploads/2018/04/Offenhauser-Catalog-1987.pdf

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